Remove gdisk require to prepare for the sfdisk migration

gdisk is being removed in CentOS Stream 10. In order to not have to
maintain gdisk only for Igntion in CentOS Stream 10, we are migrating
ignition from gdisk to sfdisk. This is migration is not ready yet but we
want to remove gdisk from CentOS Stream 10 as soon as possible thus we
are removing the dependency here.

The only consumers of the igntion feature depending on gdisk are not
using CentOS Stream 10 yet and can manually include the current gdisk
package in the meantime.

We will vendor gdisk in this package in a later commit until we are
ready to complete the migration to sfdisk.

Resolves: RHEL-55750

ignition.spec

@@ -22,7 +22,7 @@ Version:                2.17.0
 %global dracutlibdir %{_prefix}/lib/dracut
 
 Name:           ignition
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        First boot installer and configuration tool
 
 # Upstream license specification: Apache-2.0
@@ -39,7 +39,6 @@ BuildRequires: systemd-rpm-macros
 Recommends: btrfs-progs
 %endif
 Requires: dosfstools
-Requires: gdisk
 Requires: dracut
 Requires: dracut-network
 
@@ -361,6 +360,9 @@ install -p -m 0755 ./ignition %{buildroot}/%{dracutlibdir}/modules.d/30ignition
 %{_libdir}/bootupd/grub2-static/configs.d/ignition.cfg
 
 %changelog
+* Thu Aug 22 2024 Timothée Ravier <tim@siosm.fr> - 2.17.0-6
+- Remove gdisk require to prepare for the sfdisk migration
+
 * Mon Jun 24 2024 Troy Dawson <tdawson@redhat.com> - 2.17.0-5
 - Bump release for June 2024 mass rebuild